department the geological survey - alaska dggs · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim...

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UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY SPECTROGRAPHIC DATA FOR THE ASH OF GROUND BIRCH (REIULA --- _____.__ ROTUNDIFOLJA . _ SARG. ) LEAVES AND BLACK SPRUCE (PICEA A -- --- - MARIANA - - - B .S .P.) NEEDLES COLLECTED FROM THE TANACROSS 1:250,000-SCALE QUADRANGLE, ALASKA By G. W. Day, G. C. Curtin, and Theodore Rillinqs , ".* ,?-%,' 3 . +*-X\ 3 . ; li ,,>.",,v?'- . . *#q '-'.'. *, R , * . , , , 3 2 ;$ I;, , ., ?I. . > ,., , Open-Fil e Report 79-1 355 -,., &, T +:- ', . . . #- , , . . '.I. ' . : . .I. &&7:; :h: 2 a, . .,. r, ' -. ' $ .!y; $9 7 979 . .;" : :& :t\ 4 , , t ,. , ;\ ,+, ,: ;: ! ,'::..< , . .. - ; ' v, b "-' " -- ' 3, a,.. b,: , : * .%.<

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Page 1: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

UNITED STATES DEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEY

SPECTROGRAPHIC DATA FOR THE ASH OF GROUND B I R C H

( R E I U L A --- _____.__ ROTUNDIFOLJA . _ SARG. ) LEAVES AND BLACK SPRUCE

( P I C E A A -- --- - MARIANA - - - B . S . P . ) NEEDLES COLLECTED FROM THE

TANACROSS 1:250,000-SCALE QUADRANGLE, ALASKA

By G. W . Day, G . C. C u r t i n , and Theodore Rillinqs

, ".* ,?-%,' 3 . +*-X\ 3 . ; li

, ,>.", ,v?'- . . * # q '-'.'. *,

R , * . , , , 3 2 ;$ I ; , , .,

?I. . > ,., ,

Open-Fil e Report 79-1 355 -,., &,, T

+:- ', . . . # - , , . .

'.I. ' . : . . I .

&&7:; :h: 2 a, . .,. r, ' -. ' $ .!y; $9 7 979 . .;" : :& :t\ 4

, , t ,. , ;\ ,+, ,: ;: ! ,'::..<

, . .. -;' v , b "-' " -- ' 3 , a,.. b,: ,: * .%.<

Page 2: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

CONTENTS

Page

Introduction-----------------------------------------+-------------- 1

Coll ec t ion, preparat ' )n, and analys is of sar~ipl es-------------------- 1

Explanation of d a t a - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2

References cj ted------------------+------------------+-------------- 3a

X LL.USTP,AT IONS

Figure 1 . Map showing s i t e s f o r ground birch sarnpl e s , Tanacross

quadrangle, Alaska-------------------------------------

2 . Map showing s i t e s fo r b l a c k spruce samples, Tanacross

quadrangle, Alaska-------------------------------------

TAP,LES

Tab1 e 1 . Spectroqraphic analyses f o r the ash o f sal~lpl es o f

ground birch leaves collected in the Tandcross

quadrangle, Alaska----------------------------------+---- 4

2 . Spectrographic andlyscs for t h e a s h of sanlples o f

black spruce needles col lec ted in t h e Tanacross

quadrangle, Alaska---------+---------------------------- 3 7

Page 3: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

I N T R O D U C T I O N

he data presented in th i s report are semiquantitative

spectrographic resul ts for the ash o f 478 saniples of ground birch

( ~ e t u l a ----- Rotundifol ia Sarg.) leaves and 645 sarr~ples o f black spruce

(Picea --- - F?ariana B . S . P , ) needles collected from the Tanacross 1 :250,000-

scale quadrangle, east-central A1 aska . The san~ples were coll ected

during reconnaissance geocheniical studies which were being rnade t o

assess the mineral -resource p n t t . r , t i a l of the yuadranqle. The sainpl cs

o f black spruce were col lected throughout lnost o f t h e quadrangl e ( f i g .

1 ) in two different te r ra ins : ( 1 ) the nlaturely dissected topography

of the Yukon-Tanana Upland (area north of the Tanana River); and ( 2 )

the rugged, mountainous terrain of the Alaska Range (southwest part of

the quadrangle). Ground birch samples were collected mainly from the

maturely dissected te r ra in .

C O L L E C T I O N , P R E P A R A T I O N , A N D ANALYSIS OF SAMPLES

The sanlples o f vegetation were collected a t s i t e s where lake

sediment, bog sedinlent, or stream sediment and other sample media

were col 1 ected (0 ' ~ e ; l ~ y a n d others, 1976). The sanipl es were col 1 ected

adjacent to , or within a few yards of lakes or streams draining areas

2 ranqiny from 1 0 to 25 kril .

A con~posite sarnple was collected a t each s i t e by sarrlpl ing several

branches of each o f two or three trees growing within a few feet to a

f e w yards o f each other. The present years's growth o f ground birch and

3 to 5 years growth o f spruce needles taken approximately a t chest

height were placed in c l o t h hags and allowed t o dry.

Page 4: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

The leaves and ncedler; were separated from twigs a n d were f ine ly

chopped in a blender. They were ashed in a muffle furnace a t a peak

temperature of 500°C f o r 24 hours.

The ashed material was then analyzed by optical ernission

spectrography ( M o s i ~ r , 1972) f o r 29 el ements, The resul t s were

reported a s t h e approxinlate midpoints of geometric brackets whose

boundaries are 1 . 2 , 0 .83, 0.56, 0 . 3 8 , 0.26, 0.18, 0 .12 , and so on.

These niidpoints are 1, 0 . 7 , 0 .5 , 0 . 3 , 0.2, 0.15, 0.1, a n d so on.

T h e lower 1 imits of deterrriindtion used f o r vegetation a r e , f o r

those given in percentage: i ron, 0 .05 ; magnesiurn, 0.02; and t i tanium,

0.002. For t h o s e reported i n ppm: nlanyanese, 10; s i l v e r , 0.1 ;

arsenic , 200; q o l d , 2 ; boron, 5 ; barium, 20; beryllium, 1 ; bismuth,

1 : cadmium, 2 ; coba l t , 10; chromium, 5 ; copper, 1 ; lanthanum, 20;

molybdenum, 2 ; niobium, 50; n ickel , 5 ; l ead , 1 ; antimony, 50; scandium,

5 ; t i n , 5 ; strontium, 100; vanadium, 10 ; tunqsten, 50 ; yt tr ium, 10;

z inc , 100; and'zirconiurn, 1 0 .

EXPLANATION OF DATA

The analyt ica l r e su l t s were entered in to the computerized Rock

Analysis Storaqe System (RASS) o f t h e U.S. Geoloqical Survey (VanTrump

and Miesch, 1 9 7 7 ) . A con~puter print-out program was used i n cornpi1 ing

the t ab l e s .

The columns have heading t i t l e s of sample, l a t i t u d e , longitude,

t h e elements, and percent ash.

T h p r e su l t s fo r a1 1 elements a r e reported i n par ts per rnill ion

(ppm) except f o r i ron , magnesiurn, a n d t i tanium, which a r e reported i n

percent .

Page 5: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

Definitions o f the q u a l i f i e r codes used in Tables 1 and 2 are

a s 'follows: -- , no d a t a a v a i l a b l e , or sample no t analyzed f o r t h i s

element; N , no t detected a t the level of d e t e c t i o n ; ., detected, b u t

below the lowest l i r l l i t of de tec t ion , which i s value shown; dnd ,,

greater than v a l u e shown.

The sample nun~bers a p p e a r i n g i n figures 1 a n d 2 have been

simp1 i f i e d f r o m sarrlple numbers i n Tables 1 and 2 . Ttie prefix TX and

s u f f i x e s VB and VD were el iminated. Therefore, TX112VO and TX9UVD

become 112 and 98 on the respective figures. A DTX p r e f i x i n d i c a t e s

t h a t a replicate sample was col lec ted a t a p a r t i c u l a r s i t e .

Page 6: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

R E F E R E N C E S CITED

osier, E. L . , 1972, A method fo r serniquanti t a t i v e spectrographic

analys is o f plant ash fo r use in biogeocherrtical and environmental

s tud ies : Applied Spectroscopy, v . 2 6 , no. 6 , p . 636-640.

O'Leary, R . M . , McDanal, S . K . , FlcDougal, C . M., Day, G . CJ., Curtin,

G . C . , and Foster, H . L . , 1976, Spectrographic and chemical

analyses of geochemical sarnpl es and re la ted d a t a from the

Tanacross quadrangl e , A1 aska : U. S . Geological Survey Open-

F i l e Report 7 6 - 4 2 2 , 94 p .

VanTrump, George, J r . , and Viesch, A. T . , 1977, Thc 1I.S. Geological

Survey RASS-STATPAC systen~ f o r manaqement and s t a t i s t i c a l

reduc t ion of qeochemical d a t a : Computers a n d Geosciences, v .

3 , p . 475-488.

Page 7: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 8: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 9: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 10: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 11: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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m 00000 W m o o O o o o a o O O o o o O o o o O C I O O O O O O O o Q O O o o D O o O o O 11 . . . . a I , . . * . . . . . . I . * , r . . * * I . . . r . . I . , . . r e * I * . . *

I m m i n m h N r - r h o m o t - h r - h O k O O U U N F - W r - m m h N W m m Q m m O m O h O O M - N VI I F N m - - 7.- r N P 11 -

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w L o o m o d m 4 - m m m m m m o n m d m u > r > t n m ~ m - d m m m d d - r - a m d o t n d r n o n o m

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r + + r + +I--+++ I - + + + + + & I - + + + + + I - & + + p r y k b p t - k + + r p + r + r + r

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O ~ W O O o o o o o o a a o o ~ C O O D n n o n o n o o o o n a a o o o c o o o ~ n o o o 2 D O O U O O C O O Q OOC30 000DC OOOOn O O O O O O O O O n O C O O O w a 0 0 0 5 O D O Q O o o o o o ~ O O O O o a o o a 0 0 o a 0 c a o o ~ 00000 C I O O Q Q P D O O O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . w 0 0 0 0 0 D O O O D 40300 U ~ O O W O O O M O L O O O O r - o a ~ h v ~ m ~ a m mao om

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0 Z N N N N m h z N f 4 W N D W f i m W N m m Z N f l 2 Z N Z W m N l Z Z Z N m W UZf'lt4P- f U m N m N I V V a-- r v P b'?

0 0 u ~ n a a o a a n a a n a a a o 0 w 0 > 0 o n ~ a o 9 o o o a o o o a o o d e o n n o n o - - 2 > > > > > > > > > > > > > > > Q W r - > > > > > a > > > > > > > > 2 . > z . P > = . > a = - > > > 2 . - N ~ . Y w - - O ~ . C O D O . - N M G ~ a m r - m m - C , - ~ J M . Y * Q R W c - o . - w ~ - m ~ + m m o m m ~

u v d u . ? v . r . , d m m m m m m ~ W d N m flgg.41- aQa.Og Gt - r -h r - r-br-hr- h G 3 U 3 U l W N W N N N N N N N N N N W N N N X N X W W N n J W N N W a U N N N N N N N N W N N N N q N N N

w X X X X K X X X x X X X X X % X C M t - X X X X X X X X X X X X X X K X X X X X X Y X X X X + C + C C c + + + & + + + + k - r ~ r a r I - r h ~ r F ~ + + c r r r C r I - + + V C + b e + +

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D O O O O 0 0 0 0 0 o n o o o o o o o o o o o n o o o o o o o o o o o a o o o o o o o o o 7 n m n o n o o n o n o n o n n nnnnn o o n o n nnnnn nnnnn n n n m n n n o n o N OOBOO mC3ooo 0 0 0 0 0 0 0 0 0 3 C J D O O O OCiOOCY UOWOo U O O O O 00000

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~ O O O C ~ n o o o O O O ~ O o n n o o 0 0 0 0 0 C ~ O ~ W O o o o o c o o o o c D O O O O z O D O O O C I O O O U o o o u o o o o o w o o o o o a c o o o o o a a o u o o o u a o o o o

q y q q : o o o a o o o m a o o ~ a o o . . . . . . . . . . . . . . . m O O O h O o a n h o O C Y O O U O U O k m LDainL O m 0 0 0 V o b a f 4 n O r m h m M O O m

. - F C 7 Y - . - - - c r e . - - - - r e t- c P r ~ . - e - c P - r r- A A h A h A A A fi n A A A A A

N O N O N N N N N N N w I U \ r n N N W N N N N N N N N N N N N N N N N W N N N W N N N N N W r " N - - o r n o 0 0 0 0 0 o n m o o v u o o n n u o o o ooooo o o o o o o u o ~ o o o ~ o o + 0 0 3 0 0 u u o o w ~ O ~ L J U o o u u u w ~ o u o L J O U O O O ~ U U U U C J D W O a u a a o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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0 K O N m Z P l N h t A Z V ! 0 N 0 W f v % C Y W < N N m W N Z N Z W N N N N W M N W O Z N N Z N N D N I U, ni r F V V V rCl V V N V

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round b i r c h - - c o o t i n u e d

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S C C 73 0 7 0 0

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0 r N M Z Z N "-,rnN,-.,Z m r u r v m m N N N Z N N Z Z r n ' J - N r v N N N N O Z N l N N Y N Z N r v N Z Z 0 I V .- v v v V v - C

V)

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h D + + k - h e r b + + k - C b - C F - , - + C + + * P - + h C + O C + + * C F k - + - , - + b +

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K T ~ 0 r n a 3 0 m o a a r n . o P L Q M I D ~ - a r - m m o m ~ ~ o o a 3 0 mamma m + m m m r c l a m m - l ,,, q m . y y m . t - ~ ~ ~ . i q ~ . T + N L - m h o u h m . t m o 4 m . t m m n m u w m m [email protected] - m o d - - . . . I . . . . . . . . . . . . . . . . . . . , . " . . , . . , . . . . . .

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a o o o o m o o o o o o o n o o o o o o O o n o o n o o o o n ~ o o o o o o m n o o o o 0 7 nnnrrr, r o c n n n n n r > t > r > r > r - ~ n n n n c ? n r r r ~ n n n o o n n n o n r > m n n n o

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+ & - + + I - + I - + + + I - + + + I - + a + , - + b - t - Y + - t - b - r k "

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n 4 u I l l 1 1 I 1 I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~ I 1 1 1 1 1 1 1 1 1 1 1 1 l 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 l l l l l 1 1 1 1 1 I l l ( ! V1 7 N O O O D U o c o o c o o o o a o o o u o a n c o o c a o c a ooooo o o u a o c o o o o w 0 0 0 0 0 O h O - U 0 0 0 3 4 DO000 U O U O O O O C O O O O C O C O U O O O 0 0 0 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I ~ V N - ~ F r r - m ( U N ~ N W I N N W N N N N M W N w N - - m w ? n w m m m m ~ N m m ~ r N m u)

- 3 v , m v , m m O O O O O 0 0 0 3 ~ - 2003: 0 0 0 0 0 3 0 m 0 0 m o a o n o a o o o o a o ~ o + w L n M < m L ~ v Q N - N U N r - T) r F * V n rmm ~ N W W N u - v w - - Y - G v

10 u m m m m m m m m ~ r n m a m m m m m m > r n ~ m m m m m m m m m m m m m m m m m - m m m m m E r n > > > > > ? - , > > - ' > > > > > > > > > r - > > > > , > > > > a > > > > a > % = - > D > > > > > Z . > O - N m u m a t - r n 0 . 0 ~ ~ m u m a r - - W D O V ~ r n e r n a hzo.-ry w q m a r . E m u w 7 a h m c - 0 0 0 o o o o u 0 0 - r - - - . - - - , - F C N N N W N N N W N M W ~ m n m n t q m m m D p P - 0 - 7 - r r r r - r - - r - - - r r - x - 7 - r r - r - - - - - - - - r r - r - r

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Page 47: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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0

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C

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.Y u m o m - v o h - r u . - t - m ; o m t n r ~ m h u l < r u m u 3 - . - - m o s m u ~ . ~ . - c c O - C ~ N N - m m - ~ t - - f a o . a m m m r - u l p m - r u ? u c * v \ w . - r r m m m m r u . r . - u w c ~ m m r r m . - @ a > ~ m r \ l p b m r * , . * I . I . . . . . . . a . . . . * . * I * . . . . . . I . . . . I , . . , , , . . I

a , m ~ r ? f i r t J c t r ? . r r ~ - f d r f u m M ~ N M N I r 7 m m r u u m r * l r ? ~ r u m r n m m d r ? m m ~ > r n t q c ~ l m t q m

o o m m o O ~ C O O 1 3 ~ 0 n 0 , o m n o 0 o a o a o u o o o o o a m a w o o o n o n o o o o > r u - N I r r r - - r W - m N F l W v > r N N N N - V l - W r q r - W l r ~ N m - f u r r u m m W m & N r r r m n I Y)

- - - . - . m P * @ P ~ ~ m - - . - - Y . - - T - -.-.--.- T - F - - x r - - r T - F - F c . - F F - -~ . - t , - to X X X X X X X X X X X X X X X X X X X X X X X X X + X X X X X X X X X X X X X X X X X H X

k + l - t - + + + + b - t - I - + I - * * k " r + b - , - k - C + + + O F - + - b - + , - b e , - + + , - + C + + * k t - +

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O O O ~ U o o o o o o n o o o o o r ~ n o n o o o r 3 m o o c ~ o o n o o n ;3ooor~ n n o o o .X U O U O L ~ Q O U D O o o o o u O C J O O O < - J O L J L ~ U O ~ C > U C > 0 c 3 0 0 n o ~ o o o u o o o o m u m o o a h o h o o O O m U m m O r J m 0 0 0 0 0 0 0 C 3 0 0 0 ou3UmCJ 0 0 0 m 0 o U O O O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I \ % . . % . . . . . . . . V) Ln-wLnr- hl F - m N r m r W 3 N r - f l - W m N F > - m r N Y - L O F N N R M t - u ? h V ? N N m

o o o o o O , O O O D o o o a o n o o o o o a o o a o m a o o o a o o o o n n u o a n o n o m o n u c o o ~ r r m o m h ~ O m m o ~ r - m m m k o O C 3 C i 0 0 0 0 O P - C J O O h U O O m m O m ( 3 1 m r ) m m w r- n t-- t . 7 - v - c PC- F .- m m N . - v F N w N w n r r F r m + m V)

o o a w o O O U O O O O O O L ~ 0 0 0 0 0 O O O O L Y 0 0 0 0 0 c l 0 0 0 0 q 0 0 0 0 O O U O D z o o c o o W C J O D C J s o o o u o o o o o D O O O U n o 0 0 0 a m 0 0 0 o o o o o O O D O O x 0 0 ~ 0 0 O O O O ~ o o o c o n ~ o o o 0 0 0 0 3 O O ~ C I O u o o o u 0 0 3 0 0 a o o a o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.H oCIO20 O O N O N C J U O O O 0 0 L A m 0 3 U U 0 U 3 0 0 0 0 U m W 3 0 O O U U O 0 0 0 Q 0 - - - . - n w . - . -or~o . - N - N ~ - N O O N m m . - . - ~ N ~ V N - - ~ v - ~ v - w V N - - ~ v- . - - . -M I- 0 0 0 0 0 0 0 0 0 ~ ~ o a o o a O O O ~ O o u n o o o o o o c o n n o o o o o o o o o o o q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v)

4 u I l l I t 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I , , I l l UJ

V) 7

m m w m m > m m m m m m m m m m m m m m n m m m o m m [ c o m m m m a m m > m m m m m m m m m m m - > > m > z . > > > > > > > > > > > > - > > > a > > > > > > > > =->>In> > > > > > > > > a > P n Y P m O r ~ m . T a k C O C P Q P W ~ ~ W J V N m q m Q r . . W W O - N M e m h a h m @ a ~ w m u n 9 E m w - u u u q ~ u q u v m m m m m m Q 9 Q 9 h F L h t - b r h h h + m c O m m m w w

.- . -x-r+ , - C P F P .--.-.-"" . - W - r - r r - r . - - - r -.-.-,-- r - r x - F . -C , - . - ? P P F , - "l * X I - X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X C X X X X X X X W X X W

k k + O I - + ++ , - I - + * + I - I - C + P I - + + I - t - C P b - k -ebb-+ + - C P 9 + + + I - + + ,.-hk+,-.

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m o o u u o o o a o o o o o o o o a o o o o o o o o o o o u o o u u o o n o o o a o n o o o a . . . ' " . . * * ' , " , . . n . . . . 1 N - F - ~ N - c c - r M N m - ~ N r r t a N m m r M .--.--.- M N ~ C F r n m - c r m N m r m . v v

2 u a a o n a 0 0 0 3 0 o o n c i o n o o u o o o a o a o o ~ o o o a c i o o a n o o o g o o o o ( t.hr.hh r - r - h L L h h h F . N h P . ~ V r w h m t . r + h h h h W O h R r - h O h P - h r . h , n h h k , L k

Y) r- .-

m m u m m w o m m m m a m m m m m m m m m m m m m m m m m m m m m m r n r n > m m m m m m m m m m m 4 Z > P > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > m > > > > w > > > > > > a c o m m a - m m q a h m e o - N . Y W ~ - W m u m a r - ~ P O - N n q m h o b m m ~ ~ t u r n * - a E m m r u v U - V U - ~ u f i m * v t m m a ~ 9 a - e ~ a d h k h r - b h - h ~ h h r n r n c o m m m a

C V X F F 7 " - - F - - r e - - V - C F C F - p r ? F C C F F v F P X + V F P P V C r C P r

rn x X C Y X X X X x X X X X X X X x X X X K X X X X X x X X X X X X + x x X X X X X X X X x F I - Q C I - ) - + + + I - + + b e + r c r + r b - + r + r r + t - t - b + + + o h + r h + r I - c c c r

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t o o o a m 0 0 0 0 0 3 0 0 0 0 n( 'ooo o n o o o n o o n o n o o o o o o o o o o o o o o o o o a o o o ~ ~ o o o o ~ 3 : ~ o 3 3 0 0 r 1 J O O Q S o n o o o o n l o w o u ~ > . > o o o o o o

I m o n o o c > u o o o m c o o o c u r - w u - m o t - v h o n o r - o m a o o c > u n o a k o e o o u, . . * . \ \ \ , . \ . . . . . . . \ . . , * % . . * . ..... . . * .

0 0 0 0 0 U O O O U 0 0 0 0 0 0 0 0 0 0 1 3 c r 3 3 0 O O O O D C , O C O O O O O O D C L 2 0 0 0 & o o o o u D J O U U o o o c o O V G O U O D : ~ C ~ C > U ~ U C > O O O D O c > m 3 0 0 o o o o o vr r-.aomw ~ n o r j m n m i ? ~ > n m ~ 1 m h r . m r n r c m v i i n m r c o n r n C C : O O O o n m o o a n v r m o

"2

u m m i m m m m m m m c m m m m m m m m m m o m m m m m m m m m m m > m m m m m m m m o m m - > 9 m > > > > > > w > > > > > > > > > > >>:,>> > : - - > 2 > > > > , A > > > > > > > > > > > O W P t - 7 0 ~ m m u a r - L O D O F N - r .=Lu-ru M u m Q h W - O M N M ~ r n r - Q h c a m o - w m < m Q 6 r n r - ? - - ~ u d ~ . r . s . r d d m m m m n m a a ~ S U U Q a a h k h k h h - h h h h m m m m m m m

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00000 v O O O n 0 0 0 3 0 o O O O O 0 ~ 3 0 0 0 O o O O D U o O o O 00030 O o O O O u a n a a o O O O O L ~ ~ 3 ~ 3 ~ 3 ~ 0 r 3 r 3 1 3 0 0 ~ ~ C J O O C ) o o o o o ~ 3 0 0 0 0 0 0 0 3 0 o o o o o m m m o o o 0 0 0 0 0 m o r 3 m r . o n 0 0 0 m o o u r n r - n o o n o r -ooo m o o m o m n a o h 1 . \ \ 8 \ < * < \ * 8 < < \ . < * \ \ 8 \ \ . 8 < 5 < \ * % \ \ L 8 \ \ \ \

m . - % - w m r . m r . ~ m - ~ m w N - - t o ~ L ~ P J Y ~ - w m m rw W ~ N . - W - N - . - . - n b m

O O D O O c ~ a o c ~ o 0 m a 3 0 o o o o o 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 O O O ~ O C Y O O D O z o a a o o o o r o o a 0 0 ~ 2 0 0 r . . o o m o n o o a o m o o o a o o o o o o n m o o o o o o o a coooo c o o o o o o o o o z ~ r ~ m o o uoooo ooooo oouuo o o o o u o c o o u 1 8 \ \ 8 < \ * < \ . \ \ . \ \ \ L < \ \ \ \ \ 8 . * . \ \ w k O D m m t - m m r - 0 o m 0 0 0 M O O F - N V O O O O D O O r n h O C Y O O h kb00F- t . 0 m o l n - ,-. r- r- - 7 - v r" ' - - P C . - c y C F C r - - r- r -

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NCn-J .Y - 1 . - . - e u L O U W Q J ~ ~ U N ~ W - . - N N W u ~ - % - o ~ ~ r n o m d ~ - u G - M ~ Q C O ~ P U m m r - m h c O . , U - ~ m - ~ d m d m m m m m m m m m m m m m m q m n m j m d m . ~ m m m m m m m m m m m m c

~ m n n m m m w n n n m n m w n w n n n M m m n n m n m n ~ m n n ~ m nnnnn n n n n m Q Q * * Q a a a a a a - o a a a aU3a.a-n Q a a a a 9 9 a 9 - a 9 9 a a 9 9 a 9 . 0 a****

m m m m 3 m m m m m m m m m m m m m m r n m m o m m m m m m m m m m m m m m m m m m m m m m m m - > > m > > > > > > > > > > > > > > > > > > > > > > a > > > > > z . > > > > > > > > > > > > > a h ~ ~ r n m o r N m u m Q h w P O - - ~ m d m 4 h W P n - ~ n < m akmPO mum a k m P O E m w r m m * @ P C % & D @ C % @ a O O P O a 0000- - F C C - - - F C N W N N N N Wr . JNNW Q - r x r ~ r - r v - r - V - - - C N N N N N N N N r W N N N N N N N N N N N N N N N W N N N W W N n x x b - x x X x W x x X X X x X X X X X X X X X X X X X x x X X X X X X X X X X X X X X X X

+ + n b - + + + + k t - ~ - r k t - + + r c + r + r r r t - t - + + r ~ - + P - r c c I - + + + + - b r r + +

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-

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- - 7

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z ( 3 0 0 0 0 o o o u o n ~ 7 o o o m o o o m o o n ~ n o o o o o o o o c ~ c ~ o o o n m O O O ~ O N o u o o n o o o o a o o ~ o o o o o o o o ~ n o . ~ o n : > n o o o o o n o o o o o 3 0 0 0 0 I O O O ( ~ C C Y O O O V , m o o n n n o o o m o o o c o o o u o o nommn r2mooo o m n o o

Y) . . . . . . . . . . . . . . . . . . . . \ \ \ . . \ \ \ , \ \ , \ \ . . \ \ . \ . \ \ N ~ V ~ M N W M N M ~ - ~ m r n m M N W N N M M M W N - N N ~ m r r - N N - N M - m r - . - m n

0 0 0 0 0 0 0 0 0 0 r>0[330* L 3 a a O O 0 O C 1 0 0 O O O Q O 0 0 0 3 r 3 C000C 0 0 z 0 0 > - - W - r N N N r h u 3 m m h - m-rrrr M N r t 4 N N I C I W F - ~ N M M F I r N m L n r r - - r I

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c o o o n o o o u o oouoo c c o o o t n o o ~ o o u o o Q O U O O O O O O ~ o o o o o E 0 0 0 0 0 o o u u o ~ O O U U onorno O ~ ~ C J G o u u o c O O O D C o n a m o 0 0 0 ~ ~ 0

o o f i o o 0 0 ~ m n k n u h m m - n m n mmmon br -moo m r . m m t C O ~ O O m m a m m . . . . . . . . . . . . . . . . I . . . . . . . . . . \ . \ . . , \ \ . \ \

m u m m > m m m m m m n m m m m m m m m m m m m r n m m r n m m m o n m m m m m m m m m m m m m m - > > a > > > > > > 2 > > > > > > > > > w 2 > > > > > > > > > > > > > > > > > 2 . > > > > > > P r - m m - o - ~ n ~ f i a h m p o - , v m . i m he ma - ~ n u m a h w w n r ~ m ~ f i a h m c - o 6 W L U - ~ P m m m - m - m - r n o O C U O O 0 ~ 0 0 - ~ - - - - r - F F r - ~ N N N N W W N ~ N M Q r - X - y F - r r - F - F W - N N N W I W W N N N N N N N N W N W N N N W N N W W N W W N N N H X X + X X X X X . X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

t - C O h - k - e l - C + + + + b - k - b - e l - k - + k - + k + t - " l - + l - + + b e + + . + k - + * , - I - , - + - + -

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Page 58: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 59: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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Page 60: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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m m u m m m m m m m m m m m m m m m m m m m m m m m - m m m m m > m m m m m m m m m m m m m m m - > > , Z > > > > > > Z r > > > > > > > > > 2 > > > > > > > > > > n uur-rnp O . - N - ~ maw^.^ C N ~ - - ~ r - w m m t i . - N M V e m a k a e 0 - m ~ ~ m a k r n E . - - c F - N N N N N w w r v ~ t - 3 t o m ~ m f l m m r n u m q q u ~ e . . r m m m m u ? m m m m fU - 3 q J - J - J U J V 4 3 G U * - J < 7 4 9 4 3 4 4 d X V U d U V X J q V d J J - J d 4 - J 9 U . t V V La X X X X X X X X X X X X X X W X X X X X X X X k - X X X X X , - X X X X X X X X X X X X X X X

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m o o o o o o o o o n O o o w o O o o o ~ > C l u o o O o o o o o O o o o o o o o o o o o o o o . a , . . . . . . . . . . . . . . . . . . . . ' . . " . . ' . . . . r . . . . I . . . .

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+ - + * + C + & + , - C + " , - & k c + + a + + t - + * , - h - * + h . + & + O + , - + + * + + + + h e + +

Page 75: DEPARTMENT THE GEOLOGICAL SURVEY - Alaska DGGS · 2006. 3. 30. · ~,mm~hn ~r-mho o-omt- hornrim 0owr.m mwmw~ m-qww p~rnmm- WN,N~ "l C m .- .-- r F - r T- F - z ooooo 00~300 oooao

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o a o o o 0 0 0 0 0 o v o a o o c , o a o o c o o o 0 0 0 0 0 Z C I G O O c o o c o u o u o o n o o a o o o o o a o n o o u o n n o o o o o o o o n o o o o c o o 0 c o o o o o o o o o m m o m - o m o m o m o o o r - m m m n m a o m o m m O C O ~ O O O O ~ m o m o m m - m m o

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m m u m m m m m m m m m m m m m m m w m > r n m m m m m m m m m m m m > m m m m m a m m m m m m m - > > > > > > w > > > > > > > > > > . - > > > > > > > > > > > > w e > > > > > > > > > > > > > a m e m a h m m o - ~ r r l m ~ ~ r n , J - N N ~ \ r lm . t ) r cm 0-0 . -WM * r r , m . o r c W ~ U . + N m ~ v \ a r c E 0 0 0 0 0 00-c . - r F - r F NNrnNN N r U N N W N w l M r n v ! W m n M m m m e . , . , V V G . r . , 'u m " - , m " - , m " - , m m m " - , m m m m m f i m x m m m m m m m m m m m m L n x m m m m m m m m m m m m b h w X X X X X X X X X X X X X X X x x r x x X X X X X X X X X X x r x x x X X X X X X X X X X

+#-&-I-C I - & + + + + - + b - , - & + & + a + + b - & + , - C , - + C P - I - . F r a r e r +Fl-I-l- + C C P - +

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O ~ O O O o o n o o o o o n o o o o o o o a o n o o o n o u n n o n o o n o o o o n u o o 4 U D O W O O D O C O O O D O O O O O C J O 0 0 0 0 0 n o n n o O O O ~ O n o ~ o o o u o o o o w o o n o o h o n f i o a o o o n o o m o n o - o o ~ o o o a m o m - o o o o b o m o o o o

\ . \ . * \ * * % \ 8 , 8 . % . . \ \ . \ . \ \ 8 < . \ . . \ . . . . . . . . . . . YI r r ^ l P I m - M K I C U W r - P l N m h m h - N 7-?."I - F N r n r . J v r h v - U'$ r l c N F P F l f i f l N

ornoon o o o m o O O O D O onooo o o o o o o o a o u o o n o n a o n o o o o o u o z o a a o o u o o o o o n o o o v o o o o o o o o o c i o o o u n o v o u o o o o o u o o o o z Q O O O O o o o o w o o s u o u o m o n omuao mooom o o a a o C ~ O O O ( ~ o o w o I * \ . \ \ \ \ \ % . * % \ \ \ . * . 8 8 % * . \ 8 \ \ \ * . * * * % * * * % k \ \ h 8 . .

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m a o a m o ooooo oooao o a c 3 ~ o L C c > o r ~ ~ 7 o ( 3 r ~ o o u n , n c 3 o c 7 n a o m o Q" . . . . . . . . * . . . . . . . . , . . . . . . . . w . . . . . . . . . . . . . ' . , . . ' 1 r .-"-r.- - . . - . - P C > 7 N . - C C r-.--7-N N r N - . - C F * 7 P r - L n C r - C . -----r e,-,-.-,- UY v v v ' - v V v v v v

=) u D Q O O O O O O D O O O C Y ~ C > O ~ O C J O o o o o o 0 0 3 a m o a o n o o a o m o o o o o o I m m f i a m m w m m a r - a m ~ j n m m m r n m m m m m r n w w ~ m r n r n m m ~ m n m m r t n m m m m m u) r -

m rn & r n m m m m o ~ m m m m m m r m m m m m r n m z - m m m u ~ z - m m m m m m m m c o m m m m m m m m m - > > > > > > Z > > > > > > > > > > > > > b r n . > > > > . 7 > > > > > > > . > > > > > > > > > > > P m m ~ . - r u m q r n a r - c ~ ~ G - o + - w m v u . . o w c-.q.-~w ~ P I W O I * ~ D . O - N m s l m r r * k 1 c ~ r 3 0 . - m E . r . r m m m m m m r n m " - 0 * Q " 3 a * Q Q * Q r n h h r - r - m h r - r - R R W m m w a m t Q m mm,G.*m m UtmlnLnLn m m m - r n w,mln-- LnmLnmm m x m m m m x m L n m m m m m m m w . m m m m m m m n "l X X X X X ' X X X X X X X X X X X X X X X X G X X X X C X X X X X X X X X X X X X X X X X X

& - l - b - + F * + - b - r + + r c e + - + + * + + - o r * + Y O & + + & - C + + + C r C C C + + + + C

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I - C W - I - c + + + I - + + + + I - + - + + + I - C O ~ I - c r o r r r I - + + + + + + + I - + + I - + + +

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o o o o o ooooo o n n a o o n u o o o n o o o o o n o o o r ~ o o o o n n a o o o o o o u 0 0 ~ 0 0 U O D O O O ~ O C Y O o o u o o ~ r 3 o a n o o o u o o u o o o o o o o o o a a a a m o o o o o o o n o o o r ~ n o m r : ~ m a c n o o o c ; l r ~ o 0 ~ 7 0 - o o o r n o a a h o o o o o o o o . . . . . . . . . . . . . . . . . . . . . . . . . . . . I 8 ' 8 \ \ * 8 \ \ 8 * * \ \

m ' h ~ ! r u r ? t . h v - r - r c - n m N - i - n m n N ~ - - r n . - m N N ~ w r u m - ~

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t n m m m m f l m a w - 3 ~ Q Q ~ x G Q Q ~ ~ Q Q Q V a 6 9 0 a - 0 9 Q 9 9 a a a a x a 4 9 9 9 9 YI X X X X X K X X X X X X X X C X X X X X K X X X X X X X Y X X K Y X X X X X k X X X % * z

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2 0 0 0 0 0 0 0 0 0 0 n o n n o o o o o n uoooo ooooo m o o o o ooooo m o a a o N oooon oouoo ooono 0 3 , ~ o o 0 0 3 3 0 ~ ~ 0 0 0 0 00003 3 0 0 0 ~ 00000 I O O C O D O O O P O C J O O U ~ 0 0 0 n m m m n c o * O O O L : > o m 0 0 0 0 m o m m t n m m m o

n o o o o o o o o a L - O O U O ' 0 0 0 0 0 D D O C Y O ooooo oaooo ooooa a o a o o > N m W m m N ~ N W N NM-cn - - m r r u ~ - N - N - - - m u > ,-"ma-,- m m F - N N N ~ ~ N I v I0

a n.

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m m m m m m m m z m m > > > > w > > - = - r n > m m - Q h = m Q - U r n > ~ m > > F l m M W l m U U O V U @ > Q N * Q a a Q Q a x Q J X h r r X X X X X x x t - X X r x x x + + + I - + + + + a + * a+,.-+

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z o n a o o o o a o o n o o n N 0 0 0 0 0 O a r 3 D O O U O D